Metallic compound



UNITED- STATES PATENT Fries.

FRANK KAVANAUGH, OF HARRISBURG, TEXAS.

METALLIC COMPOUND.

SPECIFICATION forming part of Letters Patent No. 323,426, dated August 4,1885.

Application tiled May 13, 1884. (Specimens) To all whom, it TIMI-y concern:

Be it known that I, FRANK KAVANAUGH, a citizen of the United States, residing at Harrisburg, in the county of Harris and State of Texas, haveinventeda new and useful Metallic Compound, of which the followingis a specification.

Thisinvention has relation to a metallic compound designed to be used as a substitute for brass and bronzes, and particularly for journal-bearings of all kinds.

The proportions of the several ingredients employed in making my composition are as follows: zinc, eighty-five and three-fourths pounds; copper, nine pounds; tin, two pounds; lead, one pound; castiron, one pound; salamrnoniac, eight ounces; silica, eight ounces; refined borax, four ounces. These ingredients are melted together in a furnace and cast in molds into the form desired.

The com position is a superior anti-friction substance, and is especially adapted for use for the journals of engines, passenger and freight cars, in the place of babbitted brasses and other anti-friction metal bearings and more durable than the metals referred to. The alloy resulting from this process is found by analysis to contain, in one hundred parts, zinc, 87; lead, 1.15; tin, 1.7, copper, 9.5; iron, .3.

I am aware that alloys containing zinc, copper, tin, lead, and iron are old in the art, and I claim them only when used with the salts sal-ammoniac,silicic acid, and refined borax as fluxes, and only when compounded in the proportions specified, as I find that the resulting alloy possesses properties that render it less liable to become hot in use, and that it is much more durable than babhitted brasses and other anti-friction metal bearings.

\Vhat I claim as new, and desire to secure by Letters Patent of the United States, is-

The process of making alloys for journalbearings which consists in melting zinc, tin, copper, lead, and cast-iron in the proportions stated, with a flux of sal-ammoniac, silica, and borax, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signaturein presence of two witnesses.

FRANK KAVANAUGH.

W'it-nesses:

J AMES ROBERT OAD'E, JOHN DIERKEN. 

